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Page 2 of 40
CONTENTS
GENERAL INFORMATION AND SAFETY SUMMARY ............................................ 3
DESCRIPTION OF WIPER SYSTEM ....................................................................... 4
PENDULUM ARM - F63 STYLE ................................................................................ 6
PANTOGRAPH ARM - P613 STYLE ........................................................................ 7
PANTOGRAPH ARM - P614 STYLE ........................................................................ 8
RIGID (FLAT) WIPER BLADES- 14MM SADDLE ..................................................... 9
ARTICULATED WIPER BLADES - 14MM SADDLE ............................................... 10
INSTALLATION INSTRUCTIONS ........................................................................... 11
DRILLING DIAGRAM .............................................................................................. 11
EXPLODED DIAGRAM ........................................................................................... 12
FITTING THE WIPER UNIT .................................................................................... 13
ELECTRICAL CONNECTIONS ............................................................................... 14
ARC ADJUSTMENT ................................................................................................ 15
FITTING THE WIPER BLADE ................................................................................. 16
FITTING THE WIPER ARM ASSEMBLY ................................................................ 17
ADJUSTING THE WIPER BLADE ANGLE ............................................................. 18
TROUBLESHOOTING ............................................................................................ 19
INSPECTION / MAINTENANCE - TABLES ............................................................ 21
TORQUE SETTINGS .............................................................................................. 22
HOW TO CHECK FOR WEAR ON THE ROD END................................................ 22
MAINTENANCE INSTRUCTIONS .......................................................................... 23
TO REPLACE THE WIPER BLADE ........................................................................ 24
TO REPLACE THE WIPER ARM ASSY ................................................................. 25
TO REPLACE THE ENTIRE WIPER UNIT ............................................................. 26
TO REPLACE THE 24V WIPER MOTOR ASSY .................................................... 27
TO REPLACE THE 12V WIPER MOTOR ASSY .................................................... 28
CONTROLLER INSTALLATION INSTRUCTIONS ................................................. 29
12V OR 24V MULTI-SWITCH – WIRING & SIZES ................................................. 30
12V OR 24V MULTI-SWITCH – OPERATION ........................................................ 31
12V/24V TOGGLE SWITCH – WIRING & SIZES ................................................... 32
12V/24V TOGGLE SWITCH - OPERATION ........................................................... 33
12V/24V ROTARY SWITCH - WIRING & SIZES .................................................... 34
12V/24V ROTARY SWITCH - OPERATION ........................................................... 35
EXTERNAL FITTINGS - LINKAGE ......................................................................... 36
EXTERNAL FITTINGS - ARMS - CHANNEL SECTION ......................................... 37
Page 3 of 40
GENERAL INFORMATION AND SAFETY SUMMARY As we will have no influence on the installation of complete windscreen wiper systems if installation is to be carried out by the customer, we are unable to accept liability for installation errors.
If you require any additional information or any special problems arise which the installation/maintenance instructions do not treat in sufficient detail please contact Customer Service at B. Hepworth and Co Ltd directly.
Safety Precautions
CAUTION! BEWARE OF INJURY!
BEFORE WORKING ON THE WIPER SYSTEM, OBSERVE THE FOLLOWING REMARKS WITHOUT FAIL!
Most wiper motors have a park setting, which permits them to default to the parked position if connected to the vehicle electrical system, even when the wiper is switched off. FOR THIS REASON, AT THIS POINT IN TIME, NEITHER MAY THE WIPER ARM BE MOUNTED, NOR MAY ANY PERSON HAVE HANDS, FINGERS, ETC ANYWHERE NEAR THE WIPER SYSTEM. Even
small wiper motors can neither be braked nor stopped by hand.
NEVER REACH INTO THE AREA OF THE ROD LINKAGE WHEN THE SYSTEM IS RUNNING!
When putting into service (i.e. when connecting the wiper motor to the vehicle electrical system, even if the wiper switch is in the 0 position), never leave any loose items such as screwdrivers in the area of the wiper system, as flying objects could lead to injury.
Please ensure the equipment is handled with care. Do not drop or bang the equipment down on a hard surface taking extra care around the area where the motor shaft is situated. Do not hammer the motor shaft when installing the equipment, as this will cause the motor gear plate to deform causing premature failure of the unit.
Introduction The Windscreen Wiper system utilised is detailed on the following pages. The primary components that form the Windscreen Wiper System are the wiper motor linkage, the wiper arm assemblies and the wiper blades.
Vari-Arc Lever Settings
IMPORTANT Vari-arc levers which have been factory set will be torqued and paint marked. Do not adjust. Unpainted lever nuts must be torque tightened M8 = 20Nm, prior to the unit being fitted.
Where internal fixing screws and/or nuts are factory set and paint marked, leave untouched unless required to be changed or paint mark is damaged.
Abbreviations and Definitions
Abbreviation Definition Abbreviation Definition
Assy Assembly LH Left Hand
Brk Bracket RH Right Hand
D. Crk Drive Crank S.A. Sub Assembly
Page 4 of 40
DESCRIPTION OF WIPER SYSTEM
Wiper Motor Assembly The entire wiper motor/mounting bracket/linkage is mounted internally. The electric wiper motor forms the central part of the windshield wiper system. The wiper motor is mounted on a fabricated steel bracket which is polyester powder coated to prevent corrosion. The motor is connected electrically by means of a multi-pin connector. The drive crank is secured to the wiper motor shaft and connected through a double bearing or a tie-bar/bearing assembly, to the main spindle lever assembly. These components transfer the motor shaft rotation to the wiper arm assembly. The drive mechanism transfers the rotary output from the motor to a reciprocating motion of the spindles. This mechanism is zinc plated and is sized to give the correct angle of arc for the windscreen wiper arm being driven. A single main spindle only is used on pendulum units. This passes through the bulkhead, connecting the drive mechanism to the wiper arm. This is manufactured from stainless steel, to prevent corrosion. An idler spindle is used on pantograph units. This is mounted on an external plate, connecting directly to the wiper arm. The spindle is manufactured from stainless steel, to prevent corrosion.
Wiper Arm Assembly The wiper arm is manufactured from stainless steel with brass castings and is polyester powder coated to prevent corrosion and to be of good appearance. One wiper arm assembly is used on each unit. The wiper arm assembly mounts directly onto the spindles protruding through the bulkhead. The wiper arm is secured to the spindles with a series of nuts and washers.
NOTE In some applications the arm may have a forward and/or sideways crank to aid wiping.
Wiper Blade The blade is secured to the arm assembly using the blade clip arrangement on the arm with a blade retaining screw and nylock nut.
Page 5 of 40
WIPER UNIT - S612132 - 24V & S612133 - 12V
Idle
r P
late
S
epa
rate
18
100 REF
17
1 R
EF
10
6 R
EF
SE
T T
O 9
0°
4M
M M
AX
68 Protrution
90
86
.1/2
" (1
2.7
mm
)
.3/4
" (1
9.0
5m
m)
1.0
" (2
5.4
mm
)100 REF
SE
T T
O 9
0°
86
S61213
230N
m 2
4v M
oto
rC
oned D
rive
Pe
ndulu
m U
nit
Panto
gra
ph U
nit
50
6 M
AX
17
1 R
EF
1.0" (25.4mm)
.3/4" (19.05mm)
.1/2" (12.7mm)
830
50
47 41
Idle
r Lin
er
Pro
trusio
n
by B
ulk
he
ad T
hic
kness
35
86
68 Protrution
M20
x 1
p
4
Ø1
9 T
hru
Ø21
14
0
90
50
S612
133
30N
m 1
2v M
oto
rS
plin
ed D
rive
Page 6 of 40
PENDULUM ARM - F63 STYLE (Channel Section) - 14mm Blade Clip
15
14
4
16
1
7
6a3
2
STD 50mm (CAN VARY)
STD 50mm (CAN VARY)
ARM DETAILS
TYPE ANGLE
F63 STRAIGHT
F64 10° RH CRK
F65 20° LH CRK
F66 15° LH CRK
F67 10° LH CRK
F68 20° RH CRK
F69 15° RH CRK
F70 25° RH CRK
F71 25° LH CRK
Part No. = Arm Type Arm Length Suffix TJ (if required)F63 12 or F63 12 TJ (Lengths 12" - 24" available)
RIGHT HAND CRANK 10°- 25°
LEFT HAND CRANK 10°- 25°
ITEM DESCRIPTION QTY
1 ARM - CHANNEL SECTION 1
2 WIPER BLADE 1
3 BLADE RETAINING SCREW 1
4 NYLOCK NUT 1
6 WASH JET ASSY 1
6a WASH JET BRACKET 1
7 ECOPRENE WASH TUBE Mtrs
The Following Items are on the Linkage
14 8mm WASHER - FLAT 2
15 M8 NYLOCK NUT 2
16 8mm NUT CAP 2
6
Page 7 of 40
PANTOGRAPH ARM - P613 STYLE (Channel Section) - 1 Piece T Piece - 14mm Blade Clip
Part No. = Arm Type Arm Length Suffix TJ (if required)P613 12 or P613 12 TJ (Lengths 12" - 24" available)
ITEM DESCRIPTION QTY
1 ARM - CHANNEL SECTION 1
2 WIPER BLADE 1
3 BLADE RETAINING SCREW 1
4 NYLOCK NUT 1
6 WASH JET ASSY 1
7 ECOPRENE WASH TUBE Mtrs
The Following Items are on the Linkage
14 8mm WASHER - FLAT 2
15 M8 NYLOCK NUT 2
16 8mm NUT CAP 2
2
3
6
7
15
14
50 CRS
4
1
16
Page 8 of 40
PANTOGRAPH ARM - P614 STYLE (Channel Section) - Swivel Plate - 14mm Blade Clip
2
Part No. = Arm Type Arm Length Suffix TJ (if required)P614 12 or P614 12 TJ (Lengths 12" - 24" available)
ITEM DESCRIPTION QTY
1 ARM - CHANNEL SECTION 1
2 WIPER BLADE 1
3 BLADE RETAINING SCREW 1
4 NYLOCK NUT 1
6 WASH JET ASSY 1
6a WASH JET BRACKET 1
7 ECOPRENE WASH TUBE Mtrs
The Following Items are on the Linkage
14 8mm WASHER - FLAT 2
15 M8 NYLOCK NUT 2
16 8mm NUT CAP 2
3
6
50 CRS
4
1
16
7
15
14
6a
Page 9 of 40
RIGID (FLAT) WIPER BLADES- 14MM SADDLE
BLA
DE
LE
NG
TH
S1
0"
to 3
9"
Ma
x (
in 1
" in
cre
ments
)12
17
14
Ø5
5
20
32
Page 10 of 40
ARTICULATED WIPER BLADES - 14MM SADDLE
BLA
DE
LE
NG
TH
S12"
to 2
8"
Max (
in 2
" in
cre
ments
)
14
NOTE - CAPTIVE CLIP THIS END TO BE AT TOP OF SCREEN WHEN ARM AND BLADE ARE VERTICAL
Page 11 of 40
INSTALLATION INSTRUCTIONS NOTE Retain all items removed in a safe place, as they will be required on reassembly. Any item to be discarded must be done in accordance to vessels manufacturer described task guidelines If you experience any difficulty in the fitting of any of the units/components, please do not hesitate to contact Customer Service at B. Hepworth & Co. for advice. Use the drawings for reference.
WARNING: Isolate the electrical supply before commencing any fitting work on any part of the wiper system.
DRILLING DIAGRAM
Figure - Drilling Diagram
'A' 'B'
DRILLING DIAGRAM - FOR S61213X UNITS
DRILL HOLE 'A' - Ø24mm (for Main Liner)
DRILL HOLE 'B' - Ø7mm (for Fixing Screw)(NOT TO SCALE)
86 CRS
Page 12 of 40
EXPLODED DIAGRAM Figure - Exploded Diagram
12
14
15
16
13
Idle
r Li
ner A
ssy
-
3 Le
ngth
s A
vaila
ble
2
30N
m 2
4v M
oto
rC
one
d D
rive
6a
6b
30
Nm
12
v M
oto
rS
plin
ed
Drive
7
1
4b
4a
11
9
8
10
3
Page 13 of 40
FITTING THE WIPER UNIT
IMPORTANT Vari-arc levers which have been factory set will be torqued and paint marked. Do not adjust. Unpainted lever nuts must be torque tightened M8 = 20Nm, prior to the unit being fitted.
Ref Figure - Drilling Diagram
When the spindle positions have been drilled in the bulkhead, the following procedures apply.
Ref Figure -Exploded Diagram
1. Remove and retain from main spindle one weather cap (16), one M8 nut (15), and one washer - flat (14),
NOTE Weather cap(s) (16), M8 nut(s) (15), and washer(s) - flat (14), are replaced when fitting the wiper arm
2. Remove and retain from main liner assy (2), one weather cap (13), one M20 nut (12), one washer - flat (11), and one washer - neoprene (10)
3. Remove and retain one M5 x 50 hex head screw (9), and one washer - flat (8), and external
idler mounting plate (7)
NOTE The Motor Unit is MOUNTED from INSIDE the Bulkhead.
4. Slide liner assy through predrilled mounting hole.
5. Externally - ENSURE a proprietary sealant (Not supplied) is used around all points of entry through bulkhead.
On Pantograph units only –
6. Remove and retain from idler spindle one weather cap (16), one M8 nut (15), and one washer - flat (14)
7. Screw idler liner assy (3), into external idler mounting plate (7)
8. Fit following items - external idler mounting plate (7), (complete with idler liner assy (3) if
pantograph) and one washer - flat (8), and one M5 x 50 hex head screw (9) Torque M5 = 6Nm (on Idler Plate Fixing - Screw)
On All units –
9. Fit onto main liner assy (2), one washer - neoprene (9), one washer - flat (11), one M20 nuts (12) Torque M20 = 25Nm (on Liner Nut– Metal Structure)
10. Fit onto main liner assy (2), one M20 weather cap (13), ensuring that it sits tightly around
spindle shaft.
11. Internally - Wire motor to vessels electrics via switch/controller (May or/may not be
supplied) In accordance with Installation Instructions - Electrical Connections and/or Switch Connections
12. Fit wiper arm assy and wiper blade
In accordance with Installation Instructions - Fitting the Wiper Arm Assy
Page 14 of 40
Figure - Electrical Connections
EN
LA
RG
ED
VIE
W
MO
TO
R C
ON
NE
CT
OR
(S
HO
WN
RO
TA
TE
D 1
80°)
(FR
ON
T V
IEW
)
31
53
a53
31b
53b
M
SL
OW
FA
ST
SH
OW
N IN
OF
F/P
AR
K C
ON
FIG
UR
AT
ION
31b
53
53b
53
a
31
12v o
r
24
v D
C (
+ve)
& S
ELF
PA
RK
FE
ED
SE
LF
P
AR
KR
EV
ER
SA
LF
EE
D
12v o
r 24v D
C(+
ve)
SU
PP
LY
0v D
C (
-ve)
SU
PP
LY
(2)
(3)
(1)
(5)
(4)
(6)
(1)
(2)
(3)
(6)
(5)
(4)53
b(C
OR
E 5
)53
(C
OR
E 4
)
31b
(CO
RE
2)
53a
(CO
RE
3)
31
(CO
RE
1)
ELECTRICAL CONNECTIONS
Page 15 of 40
ARC ADJUSTMENT
IMPORTANT Vari-arc levers which have been factory set will be torqued and paint marked. Do not adjust. Unpainted lever nuts must be torque tightened M8 = 20Nm, prior to the unit being fitted.
Ref Figure - Arc Adjustment
1. Undo M8 securing bolt (30), on vari arc lever (2a)
NOTE
Each hole position has respective angle marked against it.
2. Reposition double ended bearing (5), and M8 securing bolt (30), into threaded hole centre required.
3. Tighten M8 securing bolt (30), on vari arc lever (2a) when desired arc is reached.
Torque M8 = 20Nm (on Vari-Arc Lever)
Figure - Arc Adjustment
12v Drive Crank Sub Assy - 30 Crs
2a
30
2
5
24v Drive Crank Sub Assy - 30 Crs
30
2
5
45
50
60
708090
Enlarged view of
Hole Detail on
Vari-Arc Lever
Page 16 of 40
Figure - Blade Captive End TOP OF SCREEN
FITTING THE WIPER BLADE The wiper blades should be changed every 6 months but this is dependent on use and operating conditions
With reference to the Maintenance Table and the Troubleshooting Table – Continued
Ref Figure - Blade Clip Fixings
1. Remove and retain blade retaining screw (1), and M4 nylock nut (2), from blade clip on arm.
NOTE No plastic spacers required - if supplied with blade.
If only one end of the wiper blade rubber is captive, it must be fitted so it will be at the top of the screen when the arm is in the vertical position. (Articulated blades only)
Ref Figure - Blade Captive End
2. Place wiper blade directly into arm blade clip. 3. Ensure that all fixing holes align, on wiper blade
and arm blade clip.
Ref Figure - Blade Clip Fixings
4. Secure in place with blade retaining screw (1), and M4 nylock nut (2)
IMPORTANT DO NOT over tighten blade retaining screw and nut, as blade is required to pivot on glass.
Ref Figure - Nut Tightening
5. Secure nut until tight – then 1/4 turn back.
NOTE Pictorial representation only, May not be exact to supplied arm
Figure - Blade Clip Fixings
14mm14mm
4
3
4
3
BLADE CLIP BLADE CLIPS for SWIVEL PLATE1 PIECE T. PIECE
PENDULUM PANTOGRAPH
14mm 20mm4
3
4
3
1/4 turn back Figure - Nut Tightening
Secure nut until tight
Page 17 of 40
Figure - Arm Extractor
2
4
PLAN VIEW
3
Arm Head Spindle End
Liner Weather Cap Extractor
Weather Cap
Liner
Arm Head
Spindle End
2. Insert the Extractor between theWeather Cap and the Arm Head
3.Turn Handle to remove Arm
OPERATING THE EXTRACTOR
4. Remove Arm
1
1. Remove Nut Cap, Nylock Nut & Plain Washers
FITTING THE WIPER ARM ASSEMBLY IMPORTANT: The blade must be fitted to arm prior to arm being fitted. (This is to prevent blade clip damaging screen)
Following applies to all styles of arm
1. Internally - Run motor to insure it is parked correctly. Disconnect all electrical power. 2. Externally - While unit is being run, it is IMPORTANT to observe direction drive spindle
rotates in immediately before it stops. This direction will give PARK POSITION.
3. Fit arm onto spindle allowing blade to lie approx 50-75mm from edge of glass in PARKED POSITION. Test on a wet screen to prove clearance is acceptable.
Ref Figure - Arm Fittings
4. Fit one 8mm flat washer (14) on to spindle next to arm head, then one M8 nylock nut (15), on to each spindle.
5. Only tighten nut sufficiently to allow arm and blade to travel
across glass when motor is run to see if positioning is correct.
6. If incorrectly positioned - DO NOT ATTEMPT TO ROTATE
OR TWIST ARM ON SPINDLE this will damage splined end of drive spindle, resulting in arm and blade slipping in operation.
Ref Figure - Arm Extractor
7. To correct alignment errors, - loosen nut and gently pull arm up spindle, realign and repeat stages above. Use arm extractor tool to help pull wiper arm up spindle, if required
8. When correctly aligned,
tighten M8 spindle nuts
Torque M8 = 20Nm (on Spindle Nut)
9. Fit weather caps
supplied with linkage (16)
10. Carefully push black
wash hose attached to wiper arm onto bulkhead connector (May not be supplied)
IMPORTANT On first fitting check spring pressure on blade in parked position it must NOT exceed recommended pressure 1-1.5kg
Figure - Arm Fittings
1
16
15
14
Page 18 of 40
ADJUSTING THE WIPER BLADE ANGLE
IMPORTANT Adjusting the wiper blade angle only applies to pantograph arms with a swivel plate - P614
Ref Figure - Adjusting the Wiper Blade Angle
1. On back of adjustable swivel plate, slacken all M5 screw and nut assemblies to allow movement of blade clip on plate.
2. Rotate blade clip and blade to correct angle. Max 20° about centre. 3. Re-tighten all M5 screw and nut assemblies.
Torque M5 = 4.5Nm (on Arm - Swivel Plate/Blade Clip)
Figure - Adjusting the Wiper Blade Angle
20° 20°
WIPER BLADE
ARM
SWIVELPLATE
M5 SCREW
BLADE CLIP
WASHJET
WASHER
M5 SCREW
ENLARGED SCRAP VIEW OF FITTINGS
WASH TUBE
M5 NUT
NOTE PICTORIAL REPRESENTATION ONLYTO SHOW HOW TO ADJUST FITTINGS
MAY NOT BE EXACT TO SUPPLED ARM
Page 19 of 40
TROUBLESHOOTING
Introduction The following provides all the instructions and information necessary to locate problems and conduct tests on the windscreen wiper system components. The trouble-shooting tables provide for logical isolation of faults.
Safety Precautions Always disconnect the power when servicing the Windscreen Wiper System, or on any ancillary components. Serious damage to the Equipment and/or Personal Injury may occur if the power is not disconnected.
Troubleshooting Procedures Typical windshield wiper system troubleshooting procedures are contained in the Tables. These troubleshooting and repair procedures should be followed when encountering operational problems with the windshield wiper system.
Troubleshooting Table
SYMPTOM PROBABLE CAUSE TESTS AND CHECKS CORRECTIVE ACTION
Wiper motor fails to start
On/off switch
Voltage Level
System Jammed
Defective wiper motor
Check position of switch
Check supply voltage to switch. Check wiring and switch connections
Check wiper linkage
Turn switch to on position
Replace switch. Correct loose wiring connections. Replace broken wires
Release linkage. Release wiper arm
Replace motor
Motor shaft turns but linkage & arm remain static
Defective or loose drive crank
Check linkage for a loose drive crank
Secure or replace drive crank. Clean motor output shaft with wire brush before replacing.
Reference torque settings table
System operates but wiper arm remains static
Wiper arm
Check for loose wiper arm connection onto drive spindle
Secure or replace wiper arm after cleaning spindle spline with wire brush.
Reference torque settings table
Erratic Motor
Voltage level
Switch
Wiring
Check supply voltage to wiper system
Check for loose or broken wires
Correct voltage supply problem
Replace faulty switch
Repair or replace wiring up to motor. Replace motor if this wiring is damaged
Page 20 of 40
Troubleshooting Table - Continued
SYMPTOM PROBABLE CAUSE TESTS AND CHECKS CORRECTIVE ACTION
Slow motor operation
Voltage level
Switch
Motor bracket
Linkage
Defective wiper motor
Check supply voltage to wiper system
Check for broken bracket
Check to see if linkage is free moving
Correct voltage supply problem
Replace faulty switch
Replace defective bracket
Free linkage replace worn or damaged components
Replace wiper motor
Arm and blade not operating correctly or over sweep operation
Voltage level
Linkage
Spindle
Arm
Blade
Check supply voltage to wiper system
Check for worn or broken linkage
Check for excessive wear in spindle
Check that arm is not loose on spindle
Check for excessive wear on arm
Check fixing for wear
Check blade for wear
Check for excessive smearing on screen
Correct voltage supply problem
Replace linkage
Replace spindle
Re-tighten spindle
Replace wiper arm after cleaning spindle spline with wire brush.
Reference torque settings table
Replace blade
Replace blade
Replace blade
Excessive wear on blade.
Spring pressure.
Use spring balance on centre of blade clip till blade begins to lift off glass. 1.0 – 1.1/2 kg Must not exceed 2.0 kg
Replace spring/arm.
Washer system not working correctly
No washer fluid from jets
Check washer fluid level in tank
Check for damage to tank
Check pump is operational
Fill tank (see Note)
Replace tank (see Note)
Replace pump if faulty (see Note)
NOTE Tank and / or Pump may not be supplied by Hepworth’s, but we recommend checking of these items in any case as lack of washer fluid on screen may lead to damage or premature failure of Windscreen Wiper equipment
Page 21 of 40
INSPECTION / MAINTENANCE - TABLES
Introduction
This chapter contains daily inspection and all preventative maintenance details for the windscreen wiper components. Preventative maintenance procedures include the information required for when to replace the wiper blades.
IMPORTANT Refer to Maintenance Instructions for removal and replacement for procedures.
Safety Precautions
Always disconnect the power when servicing the Windscreen Wiper System, or on any ancillary components. Serious damage to the Equipment and/or Personal Injury may occur if the power is not disconnected.
Scheduled Maintenance Action Check
WARNING: Isolate the electrical supply before commencing any fitting work on any part of the wiper system.
The Inspection and Maintenance Tables are a Scheduled Maintenance Action Index. The index provides a list of all performance tests if applicable and preventative maintenance procedures. The tables have three columns: Periodicity, Equipment and Task
The Periodicity column indicates the intervals between the maintenance tests and preventative maintenance procedures.
The equipment column lists the equipment, assembly or subassembly that corresponds to the maintenance action.
The task column lists the maintenance task to be performed.
Inspection Table
IMPORTANT Where internal fixing screws and/or nuts are factory set and paint marked, leave untouched unless required to be changed or paint mark is damaged.
PERIODICITY EQUIPMENT TASK
Daily
Wiper Blades
Inspect wiper blades for damage, torn or missing rubber blades.
Replace wiper blades as required
Daily
Windscreen Wiper System
Perform function test of wiper washer system.
Do not carry out function test on a dry screen
Daily
Washer Tubing and Spray Nozzle
Inspect tubing for damage or loose connection on nozzle.
Check operation of spray nozzle on windscreen
Daily
Wash Tank
Ensure wash tank is filled with washer fluid to prevent wipers being used on a dry screen
*Tank may not be supplied by Hepworth’s, but we recommend checking, as lack of washer fluid on screen may lead to damage or premature failure of Windscreen Wiper equipment.
Page 22 of 40
Figure - Rod End Bearing
Rod End
Outer CasingInner Ball
Movement
Bearing Pin
Circlip
Pin Shoulder
Double Bearing
Maintenance Table
IMPORTANT Where internal fixing screws and/or nuts are factory set and paint marked, leave untouched unless required to be changed or paint mark is damaged.
PERIODICITY EQUIPMENT TASK
Once after 3 Months or As required
Fixings of wiper arm to wiper spindle
Check torque settings (Set torque wrench to correct setting. Fit on nut, turn, if correct, wrench should click.) Reference torque setting table
6 Monthly or as required
Wiper blades
Non serviceable item
Replace wiper blades
Once after 6 Months. Then visually check Annually
Complete System
Check for wear, Replace/overhaul parts if necessary
Check all torque settings for complete wiper system. Reference torque setting table
Carry out a visual check for wear in rod end. Reference Figure - Rod End Bearing
TORQUE SETTINGS
NOTE
If required - Set torque wrench to correct setting, fit on nut, turn, if correct, wrench should click.
WHERE USED DESCRIPTION SIZE TORQUE
Arm -Swivel Plate/Blade Clip (P614 Only) Nut & Bolt M5 4.5Nm
Idler Plate Fixing Bolt M5 x 40 6Nm
Wiper Motor (Swageform Screw) Bolt M6 x 16 12Nm
Splined Drive Crank (12v Motor) Nut & Bolt M6 x 35 18Nm
Coned Drive Crank (24v Motor) Nut M8 16Nm
Vari-Arc Lever Bolt M8 x 20 20Nm
Ø12 Spindle Nut M8 20Nm
Brass Liner Nut M20 25Nm
HOW TO CHECK FOR WEAR ON THE ROD END
Ref Figure - Rod End Bearing
1. Pull on tie-bar to see if any movement in rod end bearing at inner ball on outer casing.
2. If excessive movement - replace
Page 23 of 40
MAINTENANCE INSTRUCTIONS
NOTE Retain all items removed in a safe place, as they will be required on reassembly. Any item to be discarded must be done in accordance to vessels manufacturer described task guidelines If you experience any difficulty in the removal/replacement of any of the units/components, please do not hesitate to contact Customer Service at B. Hepworth & Co. for advice. Use the drawings for reference.
WARNING: Isolate the electrical supply before commencing any fitting work on any part of the wiper system.
Page 24 of 40
Figure - Blade Clip Fixings
14mm14mm
4
3
4
3
BLADE CLIP BLADE CLIPS for SWIVEL PLATE1 PIECE T. PIECE
PENDULUM PANTOGRAPH
14mm 20mm4
3
4
3
1/4 turn back Figure - Nut Tightening
Secure nut until tight
TO REPLACE THE WIPER BLADE
The wiper blades should be changed every 6 months but this is dependent on use and operating conditions
With reference to the Maintenance Table and the Troubleshooting Table – Continued
Removal
1. Internally - Run motor to ensure it is parked correctly. Disconnect all electrical power.
2. Externally - Carefully pull wiper arm assembly away from windscreen to enable access to wiper blade.
Ref Figure - Blade Clip Fittings
3. Remove one blade retaining screw (3), and one M4 nylock nut (4), from blade clip on arm. 4. Remove wiper blade from blade clip on wiper arm.
Reassembly
NOTE No plastic spacers required - if supplied with blade
If only one end of the wiper blade rubber is captive, it must be fitted so it will be at the top of the screen when the arm is in the vertical position. (Articulated blades only)
1. Place wiper blade into blade clip on wiper arm.
Ref Figure - Blade Captive End
2. Ensure that all fixing holes align. Secure in place with blade retaining screw (3), and nut (4).
IMPORTANT Do not over tighten blade screw and nut, as wiper blade is required to pivot on glass.
Ref Figure - Nut Tightening
3. Secure nut until tight – then 1/4 turn back 4. Lower wiper blade carefully back onto windscreen.
Figure - Blade Captive End TOP OF SCREEN
NOTE Pictorial
representation only,
May not be exact to
supplied arm
Page 25 of 40
Figure - Arm Extractor Tool
2
4
PLAN VIEW
3
Arm Head Spindle End
Liner Weather Cap Extractor
Weather Cap
Liner
Arm Head
Spindle End
2. Insert the Extractor between theWeather Cap and the Arm Head
3.Turn Handle to remove Arm
OPERATING THE EXTRACTOR
4. Remove Arm
1
1. Remove Nut Cap, Nylock Nut & Plain Washers
TO REPLACE THE WIPER ARM ASSY
Removal
IMPORTANT
Externally - While linkage is being run it is IMPORTANT to observe direction drive spindle rotates in, immediately before it stops. This direction will give PARK POSITION.
1. Internally- Run motor to ensure it is parked correctly Disconnect all electrical power.
NOTE. The wash hose may leak washer fluid on removal from the bulkhead connector. Keep washer fluid away from any electrical and/or mechanical part that could be affected by it.
2. Remove wash tube from external end of bulkhead connector.
Ref Figure - Spindle/Arm Fittings
3. Remove one weather cap (5) from each arm head. 4. Remove from each spindle one 8mm nut cap (16), one M8
nylock nut (15), one washer - flat (14)
Ref Figure - Arm Extractor Tool
5. Using arm extraction tool carefully remove wiper arm.
Replacement
1. Replace wiper arm and blade assy.
In accordance with Installation Instructions - Fitting the Wiper Arm Assy
Figure - Arm Fittings
1
16
15
14
Page 26 of 40
Figure- Entire Wiper Unit
12
14
15
16
13
2
6a
7
1
4a
11
9
8
10
TO REPLACE THE ENTIRE WIPER UNIT
NOTE The isometric / exploded view above is based on the 24v unit S612132, as both units although different motors / drive cranks they have the same fitting principles.
Removal
1. Internally - Run Motor to insure it is parked correctly. Disconnect all electrical power. 2. Disconnect wiring from motor.
IMPORTANT
Externally - Please make a note of PARKED position of ARMS and BLADES.
3. Remove wiper arm and blade In accordance with Maintenance Instructions, To Replace the Wiper Arm - Removal.
Ref Figure - Entire Wiper Unit
4. Remove from main liner (2), one weather cap (13), one M20 nuts (12), one washer - flat (11),
and one washer - neoprene (10) 5. Remove and retain one M5 x 50 hex head screw (9), and one washer - flat (8)
On Pantograph Units Only –
6. Remove external idler mounting plate (7), (complete with idler liner assy (3))
On All Units –
7. Internally -Carefully remove entire wiper motor unit from bulkhead.
Replacement
1. Replace entire wiper motor unit assembly. In accordance with Installation Instructions, Fitting the Wiper Motor Unit Assy
Page 27 of 40
Figure- 24v Wiper Motor
19
6a
20
4a
2
1
18
TO REPLACE THE 24V WIPER MOTOR ASSY
Removal
NOTE If the motor is damaged it may not be able to park, but the following procedures still apply
1. Internally - Run motor to ensure it is parked correctly. Disconnect all electrical power.
2. Externally - Remove wiper arm and blade assy. In accordance with Maintenance Instuctions, To Replace the Wiper Arm – Removal
3. Carefully remove entire wiper linkage assy from cab structure.
In accordance with Maintenance Instuctions, To Remove the Entire Wiper Motor Unit Assembly
IMPORTANT If able to park - Please make a note of drive crank position relative to spindle lever, as this will affect park position for wiper arm and blade, i.e. spindle lever facing towards or away from motor
Ref Figure - 24v Wiper Motor
4. Unscrew and remove drive crank nut (20), and washer - Internal lock (19). Carefully remove drive crank assy (4), (complete with double bearing (5)), from motor drive shaft
5. Unscrew three swaged fixing bolts (18) and remove wiper motor (6), from bracket (1).
Replacement
IMPORTANT Prior to fitting - Park the new motor and if required clean the drive shaft, with a wire brush
Ref Figure - Wiper Motor
1. Replace wiper motor (6) into bracket (1), and fit three swaged fixing bolts (18) Torque M8 = 15Nm (on Motor - Bolts)
2. Carefully fit drive crank assy (4), over motor drive shaft, (Referring to note after operation 2) on ‘removal’ for position.
3. Tighten drive crank nut (20)
Torque M8 = 16Nm (on Coned Drive Crank - Nut)
Page 28 of 40
Figure- 12v Wiper Motor
20
2
1
18
4b19
6b
TO REPLACE THE 12V WIPER MOTOR ASSY
Removal
NOTE If the motor is damaged it may not be able to park, but the following procedures still apply
1. Internally - Run motor to ensure it is parked correctly. Disconnect all electrical power.
2. Externally - Remove wiper arm and blade assy. In accordance with Maintenance Instuctions, To Replace the Wiper Arm – Removal
3. Carefully remove entire wiper linkage assy from cab structure.
In accordance with Maintenance Instuctions, To Remove the Entire Wiper Motor Unit Assembly
IMPORTANT If able to park - Please make a note of drive crank position relative to spindle lever, as this will affect park position for wiper arm and blade, i.e. spindle lever facing towards or away from motor
Ref Figure - 12v Wiper Motor
4. Slacken drive crank nut (20), and bolt (19), carefully remove drive crank assy (4), (complete
with double bearing (5)), from motor drive shaft 5. Unscrew three fixing bolts (18) and remove with three washers – single coil (17), and three
washers - flat (25). Remove wiper motor (6), from bracket (1).
Replacement
IMPORTANT Prior to fitting - Park the new motor and if required clean the drive shaft, with a wire brush
Ref Figure - Wiper Motor
1. Replace wiper motor (6) into bracket (1), and fit three swaged fixing bolts (18) Torque M8 = 15Nm (on Motor - Bolts)
2. Carefully fit drive crank assy (4), over motor drive shaft, (Referring to note after operation 2) on ‘removal’ for position.
3. Tighten drive crank nut (20), and bolt (19)
Torque M8 = 25Nm (on Splined Drive Crank - Nut & Bolt)
Page 29 of 40
CONTROLLER INSTALLATION INSTRUCTIONS NOTE Retain all items removed in a safe place, as they will be required on reassembly. Any item to be discarded must be done in accordance to vessels manufacturer described task guidelines If you experience any difficulty in the fitting of any of the controller /switches, please do not hesitate to contact Customer Service at B. Hepworth & Co. for advice. Use the drawings for reference.
WARNING: Isolate the electrical supply before commencing any fitting work on any part of the wiper system.
Page 30 of 40
12V OR 24V MULTI-SWITCH – WIRING & SIZES
WASHER
WIPER
LOW SPEED
HIGH SPEED
ON-SHORT DELAY
PRESS INTERMITTENT
VARIABLE
WIPE
ON-LONG DELAY
OFF/PARK
83
68
47
HEPWORTHMARINE INTERNATIONAL
2-4 MERSE ROAD. REDDITCH. B98 9HL. TEL.01527 61243
75 CRS
R5
7.5 60 SQUARE
60 CRS
CONSOLE CUT OUT DETAIL - 90087010 - 1 x 24v Multi-Switch & Plate - 90087200 - 1 x 12v Multi-Switch & Plate
CONSOLE CUT OUT DETAIL - 10166600 - 1 x 24v Multi-Switch only - 10167100 - 1 x 12v Multi-Switch only
WIPER
WASHER
56
47
9
12
MOUNTING SLOT DETAIL
56
R8.4
3
4 HOLES Ø4
+vDC
0VDC 0vDC
+vDC
BLACK (18g)
BROWN (18g)
BLUE (18g)
YELLOW (18g)
WHITE (18g)
RED (14g)
LOW SPEED
DELAYON-SHORT
ON-LONG DELAY
HIGH SPEED
OFF/PARK
INTERMITTANT
VARIABLE
WIPE
7.5A
-F
BOSCH HARNESS CONNECTOR (REAR VIEW)
SUPPRESSED TO COMMERCIAL
NON-INSULATED
SOLENOID VALVE
WASH PUMPOR
LEVELS WITHIN DIRECTIVES
(2)
(5)
INSULATED EARTH
31b
53
CONNECTORSBOSCH
31
53a
31b
53
53b
(4)
(3)
(2)
(5)
(6)
(3)
53a
53b
(6)
BOSCH MOTOR
M
NC
31
(4)
(3)
53a
53b
(2)
31b
53
(6) (5)
NC
31
(4)
CONNECTION DETAILS:
31 - 0vDC SUPPLY31b - SELF-PARK REVERSAL FEED53 - SLOW SPEED53a - SELF-PARK FEED & +VE SUPPLY53b - FAST SPEED
WIRING DETAIL
(1) (1)
COLE-HERSEE MULTI-FUNCTION24v SWITCH - 1016660012v SWITCH - 10167100
WIPER
WASHER
WIPER
WASHER
32
29
Page 31 of 40
12V OR 24V MULTI-SWITCH – OPERATION
NOTE For other all other switch or control instructions refer to the ship’s fitters/suppliers manual.
Ref Figure - Multi-Switch
1. Check switch is in off position before starting. (OFF/PARK)
IMPORTANT Do not run wipers on a dry screen.
2. To apply washer fluid to screen, press knob. (WIPER WASHER) This will apply washer fluid for period of time button is pressed.
NOTE The wiper will also operate for 3-4 wipes at normal speed after the washer fluid stops.
3. Turn knob CLOCKWISE it will (CLICK) which turns wipers on. Switch is now in area of
variable intermittent wipe cycle time. Which is between (ON-LONG DELAY 15 seconds) and (ON-SHORT DELAY 2 seconds) positions.
4. As knob is turned further clockwise between two positions it shortens delay period between
wipes.
5. Turn knob CLOCKWISE to next (CLICK) (LOW SPEED). This gives a continuous wipe across screen at a standard speed, with no delay between wipes.
6. Turn knob CLOCKWISE to last (CLICK) (HIGH SPEED). This gives a continuous wipe across screen at a faster speed, with no delay between wipes.
7. Turn knob ANTI-CLOCKWISE to off position when finished. (OFF/PARK)
IMPORTANT When turning to the off position ensure that it CLICKS to confirm fully off
Figure - Multi-Switch
WASHER
WIPER
LOW SPEED
HIGH SPEED
ON-SHORT DELAY
PRESS INTERMITTENT
VARIABLE
WIPE
ON-LONG DELAY
OFF/PARK
HEPWORTHMARINE INTERNATIONAL
2-4 MERSE ROAD. REDDITCH. B98 9HL. TEL.01527 61243
Page 32 of 40
12V/24V TOGGLE SWITCH – WIRING & SIZES
CONSOLE CUT OUT DETAIL - 90041400 - 1 x 12/24v Toggle Switch & Plate
CONSOLE CUT OUT DETAIL - 10079200 - 1 x 12/24v Toggle Switch only
193842
11
22
21
15
30
42 50
INTERNATIONAL
HEPWORTH MARINE
FAST
OFF/PARK
SLOW SLOW
30
38
WIPER SWITCH
18 13
4 HOLES Ø2 TO SUIT M3 SELF-TAP 4 HOLES Ø3
4 HOLES Ø5
53(4)
53b(2)
53a(6)
31b(8)
1 HOLE Ø12.0 THRU.18 1318
34
OFF/PARK
SLOW
FAST
53(4)
53b(2)
53a(6)
31b(8)
FUSE (NOT SUPPLIED)
31
53a5331b 53b
M
SLOW FAST
SHOWN IN OFF/PARK CONFIGURATION
31b
53 53b
53a
(+ve)& SELF
PARKFEED
SELF PARK
REVERSALFEED
+ve DCSUPPLY
(8)
(4)
(6)
(2)
310v DC
SUPPLY
SWITCH CONTACTSPOSITION
OFF/PARKSLOW SPEED
FAST SPEED
8 4 6 2
WIRING DETAIL
SUPPLY
TOP
`CH` MARK
(2)
(4)
(8)
(6)
VIA CONNECTOR SOCKET
4563 2 1
24v DC (+VE)
(-VE)0v DC
SUPPLY
12v or 24v DC (+VE)
SUPPLY
BOSCH CONNECTOR
53b
53b
53a
53a
31b
31b
53
53
31
31
BOSCH HARNESS CONNECTOR (REAR VIEW)
NON-INSULATED
(2)
(5)
INSULATED EARTH
31b
53
(3)
53a
53b
(6)
NC
31
(4)
(3)
53a
53b
(2)
31b
53
(6) (5)
NC
31
(4)
(1) (1)
CONNECTION DETAILS:
31 - 0vDC SUPPLY31b - SELF-PARK REVERSAL FEED53 - SLOW SPEED53a - SELF-PARK FEED & +VE SUPPLY53b - FAST SPEED
Page 33 of 40
12V/24V TOGGLE SWITCH - OPERATION
NOTE For other all other switch or control instructions refer to the ship’s fitters/suppliers manual.
Ref Figure - Toggle Switch
1. Check switch is in off position before starting. (OFF/PARK)
IMPORTANT Do not run wipers on a dry screen.
2. This switch does not control application of washer fluid.
3. Pushing toggle to centre position (SLOW) gives a continuous wipe across screen at a standard speed, with no delay between wipes.
4. Pushing toggle to bottom position (FAST) gives a continuous wipe across screen at a faster speed, with no delay between wipes.
5. Push toggle to top position when finished. (OFF/PARK)
Figure - Toggle Switch
INTERNATIONAL
HEPWORTH MARINE
FAST
OFF/PARK
SLOW SLOW
WIPER SWITCH
Page 34 of 40
12V/24V ROTARY SWITCH - WIRING & SIZES
OFF/PARK
ON
FAST
HEPWORTH MARINE INTERNATIONAL
WASHERWIPER
30
45
PRESS
WIPER
WASHER
4 HOLE Ø4
35.5 CRS 45
18 CRS
18 CRS
65
1 HOLE Ø42
36 CRS
SELF-PARK FEED (+VE)
0V
SELF-PARK REVERSAL FEED
+VE
PB
LW
H
B
WASHER (+VE)
0V
+VE
53b
53a
31b
LOW SPEED
HIGH SPEED
(4)
(3)
31
(2)
(5) 53
(6)
M
Ø41.2
REAR VIEW OF SWITCH
WASH PUMP/ VALVE
MERSE Rd. REDDITCH. B98 9HL. TEL.01527 61243
30
65
Ø41.2WIPER
WASHER
OFF/PARK
SLOW
FAST
BODY
KNOB11.2
9
Ø11.2
CONSOLE CUT OUT DETAIL - 90043000 - 1 x 12/24v Rotary Switch & Plate
CONSOLE CUT OUT DETAIL - 10094800 - 1 x 12/24v Rotary Switch only
WIRING DETAIL
CONNECTION DETAILS:
31 - 0vDC SUPPLY31b - SELF-PARK REVERSAL FEED53 - SLOW SPEED53a - SELF-PARK FEED & +VE SUPPLY53b - FAST SPEED
BOSCHCONNECTORS
BOSCHMOTOR
BOSCH HARNESS CONNECTOR (REAR VIEW)
NON-INSULATED
(2)
(5)
INSULATED EARTH
31b
53
(3)
53a
53b
(6)
NC
31
(4)
(3)
53a
53b
(2)
31b
53
(6) (5)
NC
31
(4)
(1) (1)
Page 35 of 40
12V/24V ROTARY SWITCH - OPERATION
NOTE For other all other switch or control instructions refer to the ship’s fitters/suppliers manual.
Ref Figure – Rotary Switch
1. Check switch is in off position before starting. (OFF/PARK)
IMPORTANT Do not run wipers on a dry screen.
2. To apply washer fluid to screen, press knob. (WIPER WASHER) This will apply washer fluid for period of time button is pressed.
NOTE It does not activate the wiper
3. Turn knob CLOCKWISE it will (CLICK) which turns wipers on, (ON). This setting gives a continuous wipe across screen at a standard speed, with no delay between wipes.
4. Turn knob CLOCKWISE to last (CLICK) (FAST). This setting gives a continuous wipe across screen at a faster speed, with no delay between wipes.
5. Turn knob ANTI-CLOCKWISE to off position when finished. (OFF/PARK) Figure – Rotary Switch
OFF/PARK
ON
FAST
HEPWORTH MARINE INTERNATIONAL
WASHERWIPER
PRESS
WIPERWASHER
MERSE Rd. REDDITCH. B98 9HL. TEL.01527 61243
Page 36 of 40
EXTERNAL FITTINGS - LINKAGE
Idler Fittings for M20 Liners
Fittings for M20 Liners and 12mm Spindles protruding outside the Bulkhead
Part No. Description Qty
(7) 1 per unit
(8) 1 per unit
(9) 1 per unit
10020600 20mm Washer - Neoprene (10) 1 per liner
10024300 20mm Washer - Plain (11) 1 per liner
10011900 M20 Hex Nut (12) 1 per liner
60034600 20mm Weather Cap (13) 1 per liner
10022500B M8 Plain Washer (14) 1 per liner
10013900B M8 Nylock Nut (15) 1 per liner
10060300 8mm Nut Cap (16) 1 per liner
1.0" (25.4mm)
.3/4" (19.05mm)
.1/2" (12.7mm)
47
Idler Liner Assy (Includes Fittings)(Protrusion by Bulkhead Thickness)
35
3a 3b 3c
41
12
11
9
14
15
16
7
13
8
10
Page 37 of 40
EXTERNAL FITTINGS - ARMS - CHANNEL SECTION
Fittings for Arm and Blade - Pendulum & Swivel Plate Pantograph F63 and P614 Styles
Part No. Description Qty
80204600 Blade Retaining Screw (14mm B. Clip) (3) (Pendulum) 1 per arm
80205600 Blade Retaining Screw (14mm B. Clip) (3) (Pantograph) 1 per arm
80010700 Blade Retaining Screw (20mm B. Clip) (3) (Pantograph) 1 per arm
10011400 M4 Nylock Nut (4) (All Arm Blade Retaining Screws) 1 per arm
80200100 Wash Jet Assy (6) 1 per arm
80201700 Wash Jet Bracket (6a) 1 per arm
80200400 Wash Hose - 4mm I/D x 6Mmm O/D (7) (Not shown) Metres
Fittings for Arm and Blade - 1 Piece T. Piece Pantograph - P613 Style
Part No. Description Qty
80205600 Blade Retaining Screw (14mm B. Clip) (3) (Pantograph) 1 per arm
80010700 Blade Retaining Screw (20mm B. Clip) (3) (Pantograph) 1 per arm
10011400 M4 Nylock Nut (4) (All Arm Blade Retaining Screws) 1 per arm
15031100 Wash Jet Assy (6) 1 per arm
80200400 Wash Hose - 4mm I/D x 6Mmm O/D (7) (Not shown) Metres
Part No. Description
60680600 Arm Extractor Tool - All Head Types
As Required
50 CRS
PANTOGRAPH
WASH JET
TJ ARMS
1 PIECE T. PIECE
14mm4
3 6
14mm
BLADE CLIP BLADE CLIPS for SWIVEL PLATE
PENDULUM PANTOGRAPH
4
3
6a
6
WASH JET & BRK
TJ ARMS
14mm 20mm4
3
4
3
Page 40 of 40
2-4 Merse Road North Moons Moat Redditch
Worcestershire B98 9HL England
Tel: +44(0)1527 61243 or 67701
Fax: +44(0)1527 66836
Web site - www.b-hepworth.com
Email: [email protected]